Lubricator



May 216, 1925.

' w E. SNYDER LUBRICATOR Filed Sept. 29. 1924 anat uut(- Patented Mey Z, 1925,

UNITED STATES PLA T fF lli' EARL SNYDER, OF f'f, @HILOJ ASSIGNOR TOTHL EDNA'BRASS GOMPANY, OF CINCINNATI, .OE-O, A. GOREORATION .OF OHIO.

LUBBICATOR.

Application led September 29, 1924.

To @ZZ fui/wm t may concern:

Be it known that l., lV EARL SNYDER,

a citizen oit the United States, Vand residing at Norwood, in the county of Hamilton .and Stateo (Ehio, have invented a new and usei'iul Lubricator, of which the 'following specieation is a full disclosure.

This invention rela-tes to the art of lubrication, and is particularly directed to improvements in lubricators vot thecondensation displacement type, whichordinarily are provided with an upper condensation reliant ber into which the steam is admitted, a lower oil reservoir in communication at its r bottom with the bottom oit the condensation chamber, and various passages ycommunicating with the oil chamber hav-ing nozzles for delivering oil vertically therefrom into separate delivery passages and thence to the parts to be lubricated. A valve icontrolled water passage connects the condensation chamber with` the oil reservoir through which water is introduced from above to a point vat or vnear the bottom of ,the-,oil reservoir, and this 'passage -is 'controlled by a manually operable valve.

It frequently 4happens that the attendant closes the water valve preparatory `to tilling the lubricator with oil, and inadvertently leaves the same closed with the result that when the engineer subsequently turns on the steanrjthe `oil inthe oil reservoir is expanded bythe heat, andequalization ot the pressure being` in'ipossible, creates ,undue pressure in the oil chamber, resulting in deformation or tract-ure of the same.

The niain object oft the invention is, therefore, to providoan Iautomatically operable valve controlling a passage ,connecting the condensation chamber and oil .reservoir in such. manner that theV pressure in the oil reservoir under the conditions above ymentioned may be relieved or equalized, and for this purpose the auxiliary automatically operable valve is made to open toward the condensation reservoir.

A further object oit the invention ris to provide a specilic construction and placement ot the valve :tor the ,above purpose,

a portion of the water passage `whichfconnects the bottom ot the condensation chamber with the `bottoni ot' ,the oil reservoir, whereby automatic equalization or relief of providing a by-passage communicating with I Serial No. v740,437'.

.through a condensationv displacement lubricatorshowingthe placement of the valve' for equalizing the pressure between the `condensation and oil chambers.

Figure 2 is ,a longitudinal section of lthe valve. i

:Figure 3 is across section ofthesame on .line 3 3, of Fig. 2.

Figure 4 4is a reduced section on line 4&4, Fig. l. i i

The ,present .invention is,adaptedr to automatically relieve the pressure inthe oil charnber thereby counter-acting lthe evilv etlects incident ,to the admission of ,steam to lthe lubricator when k,the water valve is, closed,

ythe herein disclosed .means for accomplishing the .result beingl in .the nature ojfa pressure equalization device placed .at an intermediate point between :the chambers.

The condensation lubricator shown-,is of a commercial .type and `C Onflfprises,a body ,or

casing l, .providing an oil reservoir 2 at its upper portion, herein oiglobular;configuration, from whichtjheoil `is `adapted to VbeY displaced` by water of condensation ldelivered .to the reservoir at or nearitsbottom Vthrough v.a water passage formedy ,in Nthe ,follO-Wlng manner:

The upper part of the main.casingk ,has a vpassage ,5 extending Alaterally therefrom and downwardly atfonegside forming a .lirst blind Apassage leading .out Lot the Zcondensatioircliambei. A second ,passage 6 leads laterally from `the blind passage, intoa third passage 7 Iparallel with ythe downwardly .die rected `portion of ,the first, which third ,passage ,leads to a pointadjacenttlie bottoni ot theoil reservoir, the passagefthus 'formed connecting both reservoirs The third Ypassage lies vertically, is substantially parallel with the delivery passage 5, and is herein represented as a bore traversing a projection at the side of the tube forming an oil delivery passage andtraversing the oil reservoir. A check valve casing as a prolongation of the third passage 7 extends from its upper end into the condensation reservoir and this casing is of tubular construction in threaded engagement at one end and in communication with the passage 7 Vand has radial openings 11 at an intermediate point, leading to the condensation chamber. .The tube is interiorly threaded at its upper, end to receive a spring adjusting plug 12. The valve 13 has 'the' form of a cylinder, is slidable within the casing, and has r-adial `centering fins 14 extending lengthwise thereof, providing passages 16 and further 4has a cone-shaped seating end 15 engageable with the periphery of' a small opening 16 extending through the otherwise closed lower end of the casing. A spring 20 is interposed between the upper Vend of the lvalve and the spring adjusting plug.

The condensation casing or chamber is of bulblike configuration, is separately formed, and ldetachably secured in vertical position at the top of the casing, vertically `overethe oil reservoiigand has at its top a valve 26 tor controlling a steam inlet 27. A se-ries of equalization tubes 28 connect the chamber with respective vertical water-iilled oil delivery conduits or passages 29, the

'l water in this condensation chamber lying approximately at the level of the upper ends of the tubes, a steam space being thus provided thereabove.

Sight glasses arearranged in diametric relation with respect to the ends ot the delivery nozzles 31, and the nozzles at their lower` ends have .seats concentric with the passages with which engage the end of an oil regulating valve l The oil is introduced into the reservoir 2, through a filling opening (not shown) at the top of the casing 1, and is forced by water ot' condensation delivered through the passage 7, from the top of the-oil reservoir 2 downwardly through a conduit, in the'form of the pipe 40 which extends to and communicates with a horizontally disposed general cross delivery channel 30 located at the lowest point of the main casing. From pointsalong this channel the'oil is delivered under vpressure upwardly through removable vertically disposed nozzles 31 extending into the similarly disposed delivery pipes 29, the oil passing through the nozzles and water oi' condensation in the pipes. The water level within these vertical pipes Vor conduits 29 is approximately maintained at that of the choked passage of the delivery pipes 35 extending horizontally from the upper part of the casing above the oil chamber, through which pipes the mixed oil and steam is delivered and thus distributed to the parts to be lubricated.

Steam is delivered through the equalization pipes and comes in contact with the surface of the liquid in the oil delivery passages, the pressure throughout the apparatus thus being equalized at all points.

The Water conduit above described also normally permits Vequalization of pressures between the two chambers, this passage, as

before mentioned, connecting the bottom of Y the condensation chamber with the bottom of the oil reservoir, an Vintermediately vdisposed manually operable valve heilig pro- :i:

vided for controllingthe water flow between the two chambers as desired. p

When the lubricator is in operation, the water valve should beset as shownin Fig. 1, but as frequently happens this valve is closed while the oil reservoir is being filled and steam pressure subsequently turned on, with the result that super-pressure is created Within the oil reservoir and the walls are either deformed or fractured. y

The conditions under which expansion and fracture of the oil chamber ordinarily take place, are when during cold weather oilfis introduced into the reservoir, and the steam subsequently turned on with the water valve closed, this notwithstanding that the oil chamber may onlyhavebeen partially filled. Under these conditions with the ,oil in cold and contracted condition an unusual expansion takes yplace when heat is applied. v

Having described my invention, I'claim:` 1. A condensation lubricator including a condensation chamber and oil reservoir having a water passage connecting the Asame for delivery of Water from one chamber to r another, a valve for closing the water passage, a second valve for automatically controlling the passage when the water valve isclosed, said valve opening toward the condensation reservoir to relieve pressures in the oil chamber.

2; A condensation displacement lubricator including a condensation chamber and oil reservoir having a passage connecting said chamber and reservoir, and a manually opadapted to open the passage 'from the oil reservoir to the condensation chamber to relieve pressure in said oil chamber.

[i condensation displacement lubrieator including a passage connecting the condensation chamber and oil chamber, a valve Yfor controlling the passage, and a by-passage independently connecting the two chambers, having a pressure operable valve therein adapted to open toward the condensation chamber, as result of saper-pressures in thel oil chamber.

5. A condensation displacement lubricator having a water passage connecting the condensation and oil chambers, a valve for controlling the water passage, and a by-passao'e independently connecting lthe two chambers, having a check valve therein at apted to open to the condensation chamber to relieve pressure in the oil chamber when the lirst mentioned valve is closed.

6. A condensation displacement lubricator having a vater passage connecting the condensation and oil chambers, and a manually operable valve for controlling the passage, an auxiliary passage independently establishing comn'iunieation between the chambers, and a check valve in said second oassage, normally closing the same and adapted to be opened as the resultof super-*nessure in the oil chamber, when the lirst mentioned valve is closed, to prevent fracture of the oil chamber.

7. A condensation displacement lubricator having a water passage connecting the bottom olf the condensation chamber with the bottom of the oil reservoir, a manually operable valve ior controlling said passage, a by-passage as an extension of the water passage independently connecting the condensation chamber with the oil reservoir side, said passage having a cheek valve therein normally closed and adapted to be opened by super-pressures in the oil chamber, when the manually operable valve is closed.

8. A condensation displacement lubrieator having a passage leading laterally, then downwardly from the bottom of the condensation chamber, closed at its lower end, a second passage adjacent the lirst leading from the bottom of the conduit chamber to a point adjacent the bottom o1 the oil chamber, a cross passage connecting the first and second passages at a point intermediate the chamber, a manually operable valve for controlling the cross passage, a valve casing forming a prolongation of the second passage within the condensation chamber having a. check valve therein, for closing the lower end of the casing and second passage, and adapted to be opened by super-pressures in the oil chamber, when the cross passage is closed by its valve.

In Witness whereof, I hereunto subscribe my name.

lV EARL SNYDER. 

